HD 7924 b
Description: HD 7924 b is an extrasolar planet located approximately 55 light years away in the constellation of Cassiopeia, orbiting the 7th magnitude K-type main sequence star HD 7924. It was published on January 28, 2009 and is the second planet discovered in the constellation Cassiopeia. Two additional planets in this system were discovered in 2015.
Physical Properties
Mass (Jupiter mass): Unknown
Radius (Jupiter radius): 0.214 RJ
Density: 2.53 g/cm³
Equilibrium Temperature: 825.9 K
Orbital Parameters
Orbital Period: 5.39792 days
Semi-major Axis: 0.06 AU
Eccentricity: 0.06
Inclination: Unknown
Host Star Properties
Host Star: HD 7924
Spectral Type: K0.5 V
Temperature: 5131.0 K
Stellar Mass: 0.65 M☉
Stellar Radius: 0.78 R☉
Discovery Information
Planet Letter: b
Object ID: 3.11341
Host ID: 2.54264
Discovery Date: 2009-05
Discovery Year: 2008
Discovery Method: Radial Velocity
Discovery Locale: Ground
Discovery Facility: W. M. Keck Observatory
Discovery Instrument: HIRES Spectrometer